JP3039573U - Tape insert bag - Google Patents

Abstract

(57) [Summary] [Purpose] For retort and boiled food bags, the side seal is eliminated to improve the appearance of the bag, and the side seal reduces the opening of the bag, or the side seal may be injured at the corner. Try not to do it. SOLUTION: A body film 2 is bent and abutted, and a tape 4 is inserted inside the body film 2 for heat sealing.
5b is performed to form a cylindrical shape and the bottom seal 6 is performed to form a bag, and the side seal is removed from the bag.

Description

[Detailed description of the invention]

[0001]

[Industrial applications]

 The present invention relates to a tape insertion bag for filling foods such as tuna mayonnaise, marbo tofu, meat sauce, and instant curry, which uses a stiff composite film for a retort or a boil.

[0002]

[Prior art]

 Bags for filling retort foods such as tuna mayonnaise are made of a rigid material film composed of 4 to 5 layers of nylon film or aluminum film. For example, the bag shown in FIG. 5 is an example of a bag used for filling tuna mayonnaise or instant curry, and the bag 30 includes a front and back film 31, which is a composite of Cpp / Ny / Al / PET, from the inside. 32 is a so-called three-way seal structure in which side heat seals 33a and 33b are provided on both sides of the 32 and a bottom heat seal 34 is provided on the bottom side.

In addition, as shown in FIG. 6, in the conventional bag, the same material film as the bag 30 is used to perform side heat seals 41a and 41b on both sides of the bag 40. Is cut into a V shape, heat seals 42a and 42b are performed along the cut, and a squeeze port 43 is formed at the center of the lower end, and this squeeze port 43 is heat sealed 44 to seal the heat seal. There is also a so-called squeeze container type in which notches 45a and 45b are provided on both upper sides of 44.

[0004]

[Problems to be solved by the device]

 As described above, the conventional retort or boiled food bag is a three-way seal type in which both sides and the bottom side are heat-sealed or a V-shaped heat-sealed bag. There is such a drawback. 1. As shown in Fig. 7, the side heat seal further hardens the waist (rigidity) on both sides of the bag, so the inside angle α of the bag is small on the inside of both sides, and the force to close it acts. It is difficult to take things out.

[0005] 2. The outer diameter of the bag is increased by the seal width on both sides. 3. The corner of the bag (P in Figures 5 and 6) is further hardened by heat sealing, so you may get injured in your hand at this corner, and other parts may get inside the retort or the boiler. May get stuck in a bag. 4. The heat-sealed parts on both sides are pleated, resulting in poor appearance.

As a method for improving the above-mentioned drawbacks, a so-called envelope sticking method may be considered, but in order to use this envelope sticking method, a film having a low melting temperature for heat sealing is formed on both sides of the material film. Need to be pasted together.

However, if films with a low melting temperature are pasted on both sides of the material film in this way, it becomes sticky during bag making (at the time of heat sealing), and the work is difficult to perform. There is a problem that the surface is soft during the heat treatment, so that it is easily scratched or burnt and dirty.

[0008] Also, a so-called palm-sealing sticking method is conceivable instead of the above-mentioned envelope sticking method. However, in the case of this palm-sticking sticking method, the palm-sticking sticking portion protrudes like a fold in the center of the bag, and the appearance is bad, There is a problem that moisture and the like remain on the portion where the palm is attached, which is not good for hygiene.

The present invention has been proposed in view of the above points, and an object thereof is to make it easy to take out the contents and to reduce the outer dimensions of the bag even though the bag has the same content capacity. It is an object of the present invention to provide a retort that is clean and has a beautiful appearance without being injured, and a packaging tape insertion bag for boiled foods.

[0010]

[Means for Solving the Problems]

 The structure of the tape insertion bag according to the present invention is as follows. 1. A body film is formed by bending a single body film and abutting the curved edges, and inserting a joint tape inside the abutted joint and heat sealing the tape and the edges. Is a cylindrical bag, and the bottom side of the body film is then heat-sealed in a horizontal straight line.

2. The body film is bent by bending one sheet of the body film and abutting the curved edges on both sides, and inserting a jointing tape inside the butt joint and heat sealing the tape and the both edges. In the body film formed into a cylindrical shape and the cylindrical shape described above, the portion of the tape used for joining is shifted from the center to the left or right, and in this state, the bottom side is V-shaped from both sides. And then heat seal along this V-shaped cut edge, form a squeeze port on the tip side of the V-shaped cut, and heat seal this squeeze port to seal the squeeze port. A tape insertion bag that has a notch above the heat-sealed portion of the sealed outlet.

[0012]

[Action]

 Since the bag of the present invention has no heat-sealing parts on both sides, the inner angles on both sides of the bag are looped from the acute angle of the conventional product, and the mouth is wide open, which not only makes it easy to take out the contents When filling the contents, the bag will not spill out of the mouth as it opens to both sides of the bag.

[0013]

[Embodiment of the invention]

 The film forming the body of the tape insertion bag according to the present invention is a film having a heat-sealable inner surface formed by combining a plastic film or a film combining a plastic film and an aluminum film, which is to be used for a retort or a boil. The film is strong and strong enough so that On the other hand, the tape is required to have strength similar to that of the body film and have heat sealability.

[0014]

Embodiment 1 FIG. 1 shows an embodiment of a rectangular tape insertion bag according to the present invention, in which one composite body film 2 is bent and its both ends 3a, 3b are butted. Then, a joining tape 4 was inserted inside the butt seams, and both ends 3a, 3b of the body film 2 were heat-sealed 5a, 5b, and further bottom heat-sealing 6 was performed along the bottom in a straight line. It is a composition.

FIG. 2 is a sectional view taken along the line AA ′, in which the body film 2 has a four-layer structure of CPP film 2a, Ny film 2b, Al film 2c, and PET film 2d, and tape 4 is a CPP film 4a, It has a five-layer structure of Ny film 4b, Al film 4c, Ny film 4d, and CPP film 4e.

FIG. 3 shows a method for manufacturing the tape insertion bag shown in FIGS. 1 and 2, in which one body film 2 is bent and both ends 3a and 3b thereof are abutted, and the tape 4 is inserted into the inside. Then, the tape 4 and both ends 3a and 3b are heat-sealed 5a and 5b to form a cylindrical shape by the heat-sealing bar 7, and the bottom heat-sealing bar 8 further performs the bottom heat-sealing 6.

[0017]

Second Embodiment This embodiment is shown in FIG. The tape-inserting bag of this embodiment is constructed so that it can be squeezed out. The bag 10 has both ends 11a and 11b of a body film 11 heat-sealed to a tape 12a 'and 11b'. Up to the splicing, the rollers are the same as in Example 1, but in the case of this bag 10, the lower half of the bag 10 is cut into V-shapes 12a and 12b, and the cuts 12a and 12b are heat-sealed. By forming the parts 13a and 13b, a squeeze port 14 is formed at the center of the lower end, and the squeeze port 14 is hermetically sealed by a port seal 15.

In the case of the tape insertion bag of this embodiment, the position where the tape 12 is inserted is shifted rightward from the center of the bag 10 so that it does not reach the squeeze port 14. Further, the notches 16 and 16a for opening are provided inside the tape 12 (closer to the center) in order to prevent the notch 16 and 16a from being caught in the tape 12 and preventing tearing. This bag 10 is torn from the notch 16a or 16b to open the squeeze port 14 and squeeze out the contents from here.

Incidentally, this embodiment is an example of a bag containing 300 g of tuna mayonnaise and having a retort temperature of 115 ° C. × 30 minutes. The thickness of each layer of the body film 11 is PET ^{# 12} / Ny ^{# 15} / Al ^{# 9} / CPP ^{# 70} The thickness of each layer of the tape 12 is cpp ^{# 50} / Ny ^{# 15} / Al ^{# 9} / Ny ^{# 15} / It is CPP ^{# 50} .

[0020]

[Effect of the invention]

 As described above, the present invention has the following effects by forming the body of the bag into a cylindrical shape by the tape insertion method. 1. Since there are no heat-sealed parts on both sides of the bag, open the inside of both sides of the bag in a loop. As a result, the mouth is wide open, and it is easy to take out and fill the contents, and the contents do not remain inside both sides unlike the conventional product. 2. There are no hard corners on either side of the bag, so you won't get injured at these corners or stick into other bags during retort or boil. 3. Since there are no double-sided seals, the bag can be made smaller by this amount, and it will look refreshing and look good.

[0021] 4. Since both side seals are not provided, the material film can be saved and the manufacturing cost can be saved accordingly. 5. Unlike the conventional envelope sticking method, the retort or boil does not soften the surface of the bag and it is not easily scratched or burned. 6. Unlike the conventional method of sticking the palms, there is no crease in the palms and the appearance is not good, and there is no water remaining in the palms.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of a tape insertion bag according to a first embodiment.

FIG. 2 is a sectional view taken along line AA ′.

FIG. 3 is an explanatory diagram of a method for manufacturing the tape insertion bag according to the first embodiment.

FIG. 4 is an explanatory view of a tape insertion bag according to the second embodiment.

FIG. 5 is an explanatory view of a conventional square bag.

FIG. 6 is an explanatory view of a conventional squeezing bag.

FIG. 7 is a sectional view taken along line BB ′.

[Explanation of symbols]

 1 bag 2 body film 4 tape

Claims (2)

[Utility model registration claims] 1. A body film is bent into a curved shape, and the curved edges are abutted against each other, and a joining tape is inserted inside the abutted joint to heat seal the tape and the edges. This is a tape insertion bag in which the body film is formed into a cylindrical shape, and the bottom side of the body film is bottom heat-sealed in a horizontal straight line. 2. A single body film is bent, and the bent edges are abutted, and a joint tape is inserted inside the abutted seam to heat seal the tape and the edges. The body film is formed into a cylindrical shape by the above, and in the body film formed into the cylindrical shape, the portion of the tape used for seaming is shifted from the center to either the left or right direction, and in this state, the bottom side is V A V-shaped cut is performed and heat sealing is performed along the V-shaped cut edge, a squeeze port is formed on the tip side of the V-shaped cut, and the squeeze port is heat-sealed to seal the squeeze port. A tape insertion bag having a notch above the heat-sealed portion of the sealed squeeze port.